971612135 has 16 divisors (see below), whose sum is σ = 1329483456. Its totient is φ = 675291648.

The previous prime is 971612107. The next prime is 971612183. The reversal of 971612135 is 531216179.

It is a cyclic number.

It is not a de Polignac number, because 971612135 - 2⁶ = 971612071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 971612095 and 971612104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438539 + ... + 440748.

It is an arithmetic number, because the mean of its divisors is an integer number (83092716).

Almost surely, 2^971612135 is an apocalyptic number.

971612135 is a deficient number, since it is larger than the sum of its proper divisors (357871321).

971612135 is a wasteful number, since it uses less digits than its factorization.

971612135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879322.

The product of its digits is 11340, while the sum is 35.

The square root of 971612135 is about 31170.6935277353. The cubic root of 971612135 is about 990.4463976725.

The spelling of 971612135 in words is "nine hundred seventy-one million, six hundred twelve thousand, one hundred thirty-five".